Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE NH 3 425A 690V GG SGL NH3GG69V425-1
Mersen NH3GG69V425-1 DIN NH3 gG fuse link rated at 425 A, 690 V AC and 250 V DC, featuring isolated gripping lugs, a double indicator and an 80 kA AC breaking capacity.
£48.38
Why Choose the Mersen NH3GG69V425-1 NH Fuse Link?
The Mersen NH3GG69V425-1 is a high-performance DIN NH gG low-voltage fuse link designed to provide full-range protection for industrial cables, electrical equipment and power distribution systems. Manufactured by Mersen, this fuse link interrupts overload and short circuit currents, helping protect conductors, switchgear and connected equipment in demanding electrical installations.
The NH3GG69V425-1 features isolated gripping lugs and a double operating indicator. The isolated tags support safer handling by qualified electrical personnel, while the indication system allows an operated fuse to be identified quickly during inspection, fault finding and maintenance.
With a rated current of 425 A, an AC voltage rating of 690 V and a DC voltage rating of 250 V, this NH3 fuse link is suitable for industrial switchboards, distribution panels, motor control centres and heavy-duty machinery requiring reliable general-purpose circuit protection.
Key Advantages
- DIN NH gG full-range fuse link for overload and short circuit protection.
- 425 A rated current for heavy-duty industrial power distribution.
- 690 V AC and 250 V DC voltage ratings.
- 80 kA AC breaking capacity for dependable fault interruption.
- Isolated gripping lugs support safer handling and replacement.
- Double indicator enables quick identification of an operated fuse.
Key Features
- Mersen NH gG 690 V fuse-link series.
- NH3 fuse size.
- 425 A rated current.
- 690 V AC rated voltage.
- 250 V DC rated voltage.
- gG characteristic for general-purpose cable and equipment protection.
- Double operating indicator.
- Isolated gripping lugs with silver-plated copper blade terminals.
Reliable Protection for Industrial Electrical Systems
Type gG fuse links provide full-range protection by interrupting sustained overload currents and high short circuit currents. This helps safeguard cables, switchgear and connected equipment while limiting the thermal and electrodynamic effects associated with severe electrical faults.
The Mersen NH3GG69V425-1 is designed for installation in compatible NH fuse bases and switchgear assemblies. As NH fuse systems do not guarantee rated-current non-interchangeability, installation and replacement should only be performed by qualified electrical personnel using suitable protective equipment and an approved fuse puller.
Typical Applications
- Industrial power distribution panels.
- Low-voltage switchboards and switchgear.
- Cable and feeder circuit protection.
- Motor control centres.
- Heavy industrial machinery and production equipment.
- Commercial and manufacturing electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 425 A | |
| Voltage | 690 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Manufacturer | Mersen | |
| Series | NH gG 690 V Fuse Links | |
| Model | NH3GG69V425-1 | |
| Item number | F229775 | |
| EAN / UPC | 8430399026749 | |
| Product type | DIN NH fuse link | |
| Fuse category | gG | |
| Rated current | 425 A | |
| Rated AC voltage | 690 V AC | |
| Rated DC voltage | 250 V DC | |
| AC breaking capacity | 80 kA | |
| Fuse size | NH3 | |
| Indicator | Double indicator | |
| Gripping lug type | Isolated gripping lugs | |
| Terminal material | Silver-plated copper | |
| Terminal type | Plain blades | |
| Body material | Ceramic | |
| Dimensions (L × W × H) | Approx. 150 × 71.9 × 88.9 mm | |
| Product weight | Approx. 1.05 kg | |
| Power dissipation at rated current | 34 W | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG69V425-1 used for?
It is used to protect industrial cables, distribution circuits, switchgear and electrical equipment against overloads and short circuits.
What is the current rating of this fuse?
The Mersen NH3GG69V425-1 has a rated current of 425 A.
What voltage ratings does this fuse support?
The fuse is rated for operation at up to 690 V AC and 250 V DC.
What does the gG classification mean?
The gG characteristic identifies a full-range general-purpose fuse link designed to protect cables and electrical equipment against both overload and short circuit currents.
What is the breaking capacity of this fuse?
The NH3GG69V425-1 has an AC breaking capacity of 80 kA, enabling it to interrupt high prospective fault currents.
Trusted for Industrial Circuit Protection
Mersen NH fuse links are used by electrical engineers, panel builders and industrial maintenance professionals to provide dependable protection for cables, switchgear and power distribution equipment.
